Data Mining and Predictive Analytics (Wiley Series on Methods and Applications in Data Mining) by Larose Daniel T. & Larose Chantal D

Author:Larose, Daniel T. & Larose, Chantal D. [Larose, Daniel T.]
Language: eng
Format: azw3
ISBN: 9781118868706
Publisher: Wiley
Published: 2015-03-15T16:00:00+00:00

where represents .

Thus, here we have a 95% confidence interval for the OR given by:

as reported in Table 13.4. Thus, we are 95% confident that the OR for churning among voice mail plan members and nonmembers lies between 0.37 and 0.61. As the interval does not include , the relationship is significant with 95% confidence.

We can use the cell entries to estimate the standard error of the coefficients directly, as follows (result from Bishop, Feinberg, and Holland6). The standard error for the logistic regression coefficient for Voice Mail Plan is estimated as follows:

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